Heating jacket for cooking utensils



Sept. 27, 1949. B. H. SNOOK HEATING JACKET FOR COOKING UTENSILS 2 Sheets-Sheet 1 Filed Nov. 2'7, 1945 INVENTOR BENJAFVUN H. SNOOK ATTORNEYS Sept, 27, 1949. SNQOK 2,483,069

HEATING JACKET' FOR COOKING UTENSILS Filed Nov. 2'7, 1945 I 2 Sheets-Sheet 2 [hill/M20111!!! BENJAMIN H. SNOOK INVENTOR ATTORNEY-SQ Patented Sept. 27, 1949 1i Tlie present in vention relates-to coeking utensils and -is -merepartieuiarlyaconcerned 1 withr a containerand enclosing-casing or jacket to con fine and utilize theiheat during the' cooking procon -crane objects of' th'e invention-is tc'rpro vide a novel form of acketr te hold "removable foodieontainers for cooking purposesand-*tdconfiheiand evenlydistrihutedieatto' all :parts ofthe' L containers Another object of tlreuinvention istry provideaaiacket 'or casing forremovable-foodcontainers constructed=to=red1icethe amount ot-heat neces*-- sasy romcookin'g purposes with a consequent sav ingnt fuelx Arfurtherobject ofthe invention is 'to provideaacket iand fo0d*c0nta/i1ier-constructed*to more" efficiently: utiii'zflfiel and heat hr the cooking process.

vide a cooking utensil, .of the character referred to, of simplerand more compact" construction than iSfiiSGlOSfld-ifl prion-devicese,

With the foregoing and OthGFZObifiCtSilQil'ldlifld-e5 2 above-an electric; gasroroil burner- 3. Thebot'--' tem is provided centra1ly-with'- an opening -4, which fits over the burner; and cold-air ducts 55 whic'h radiate from-'this' central" opening- The central opemngis flared 'orenlarged at the-top where it 'enters tl ie bowl-like bottom I 2'- of -the circular*iriterior-ofithia jacket l. The jacket I isprovided-=on its witlr an annular bead-*6- on which a-jacke't cover I Tests. 1

whic'lrcouldi cause" undesirable pressure under- 1 'neath themoven-l Sand th'e-sicle' vents 9 for escape- An annular groove -9d formed of moisture. about the i-nnen-wall ot 'the cover 1 for collecting moisture eondensing in the-cover and directing the-moisture -to-the vent openings 9. The under Stiil 'ianother objeet ofthe invention is to pro- "side-ofA'JheuzoVei 'I is preferably arcuatein forms as in'dicatedprovi'ding an=- armular concave heat-= deflectingrwall ior member to' deflect heat dow-nwardz on: the' contairi'er -2.

vantages in view,..the. invention.-consists of the cular in a formg with itszdiametewgradually renovel constructionand-arrangement of parts hereinafiter described and claimed.

In; the accompanxing.drawingsdllustrat' the invention:..:

Figurezd isia: verticalstransversei-sectiomofathe. 3U

. 3 Figiirez ism-vertical-transverse section showing two; food containers within; the jacket;

Figurerfi .is a .verticalatransverse section =ofnthe jacket to.1shour-the.vertical fluespr heat dubtsi-='-- Figure 6 is a vertical transverse section of the 40 container base or support.

Figure '7 is a top plan view thereof.

Like numerals in the description and drawings designate the same parts of construction.

The exterior or outside element I of this cook- 5 ing utensil is hereinafter referred to as the jacket, and the inner element 2 as the container. Jacket I is constructed, preferably, of stainless steel or aluminum and its exterior wall may be circular. It is designed to support the container 50 du'ced 'irom -the rim 6 to-the bottomIL At suitable intervals-, ---tlie:inside wall I I-is formed withventically'disposedsemiacircular-grooves or chan- 1 nels :I 3i which" extend from the flared part of cene 'tral iopening 4:= -to :the rim 6 mi th'e -jacket; the groovesaor channels' forming: with the wall-"and- I bot-tom of the container 2 a pluralityof 'flues for conveyingithe heat temitted from: the burner 3 -'to the jacket cover I.

Betweenthe channels -I3; the* wall 1 I I of "the j aek'et =I is provided with" a plurality of vertical slots or channels M for the reception of the legsl5-ot the s-tand l G fion which tlr' conta-iner z rests.

Thestand' I fi is preferably -usecl' for supporting The-cover? is provided: with-"suitable arcuateglass inspectionwindows=8- in its---top,; and withvents 9" and-I IP in sides-and top;-respectively. The top vents' Ifl i are foh the escape of excess heat 3 the rounded bottom of the container 2. The container 2 also rests on the stand i6 when removed from the jacket I. Container 2 projects, preferably, a suitable distance above the rim 6 of the jacket 1.

Other and graduated containers may be placed within the first container 2, as illustrated in Figure 4 where a smaller container i1 is suspended on the rim of container 2 by laterally-projecting, horizontal ears l8, and similarly constructed supplemental containers may be employed.

The container H, as well as other supplemental containers, should be shaped and dimensioned to permit the free circulation of heat above and below. The bottoms 9 of such containers are preferably concave, as shown in Figure 4. This form of bottom 9 deflects the heat to the food in the container next beneath.

In the operation of the device, the heat rises I from the burner 3 and contacts'the underside of the container 2. Thence it spreads outward and upward all around the container 2. .It is conducted through the ducts or channels [3 in the jacket I to the under side of cover I, where pressure of the upwardly flowing heat causes it to follow the curvature of the underside of the cover 7 and deflect downward onto the contents of the container 2. In the case of supplemental containers ll, since they are suitably spaced apart by the reduction in diameter, the downwardly deflected heat will flow in between the several containers I1 and reach their contents through the pressure above referred to. Thus the food in all containers 2 and I1 is effectively surrounded by heat. As the vents 9 are formed of restricted, downwardly and outwardly-inclined passages and the vents l0 are very restricted in cross-section, the loss of heat therefrom is greatly minimized and therefore the heat is substantially contained within the container with a negligible heat loss through the vents.

When the pressure has increased suificiently to escape in any quantity, as above explained, heat and pressure from below will continue. At this time the heat can be reduced, as desired, thus saving fuel. Heat loss is greatly reduced by this invention, with a consequent saving of gas, electricity or oil, whichever may be the heating agency.

This cooking utensil may be used in restaurants as well as homes, and is adapted to cooking several difierent kinds of food simultaneously. It can also be used for boiling, baking, roasting, and frying. It can also be used for oven canning and canning on top of the range. It can also be used for serving food. Many other uses could be mentioned. It will be noted that the construction explained permits cooking to continue after heat is cut oif.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:

1. A cooking utensil comprising a jacket having an upwardly opening chamber and a bottom wall formed with a central opening within which a heating element is adapted to be engaged, a container disposed in said jacket, the inner walls of said jacket being engageable with said container in said chamber and formed with vertically, inwardly opening, grooves, said bottom wall supportingly engaging the bottom of said container and formed with radial, upwardly opening, grooves, communicating with said central opening and said vertical grooves, said vertical and radial grooves forming with the wall and bottom of said container respectively a plurality of fines for conveying the heat emitted from the heating element to the top of said jacket and a cover engageable with the upper edge of said jacket and being formed withan annular concave heat deflecting member communicating with said fiues and said container for deflecting heat from said heating element into said container.

2. A cooking utensil comprising a jacket having an upwardly opening chamber and a bottom wall formed with a central opening within which a heating element is adapted to be engaged, a container disposed in said jacket, the inner walls of said jacket being engageable with said container in said chamber and formed with vertically, upwardly opening, grooves, said bottom wall supportingly engaging the bottom of said container and formed with radial, upwardly opening, grooves, communicating with said central opening and said vertical grooves, said vertical and radial grooves forming with the wall and bottom of said container respectively a plurality of flues for conveying the heat emitted; from the heating element to the top of said jacket a cover, engageable with the upper edge of said jacket being formed with anannular concave heat deflecting member communicating with said fines and said container for deflecting heat from said heating element into said container, said cover having an inwardly opening groove on the inner wall thereof communicating with a moisture drain opening through the wall of said cover adjacent. the lower edge thereof.

BENJAMIN H. SNOOK.

7 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Date 

